relay

Abstract

The application relates to a relay, wherein a static spring plate is provided with at least two static contact points; a dynamic spring plate is provided with at least two dynamic contact points; the dynamic spring plate and the static spring plate are arranged at intervals along a first direction of the relay; the position of each dynamic contact point is opposite to the position of one static contact point; one dynamic contact point and one static contact point are arranged as a contact point unit; a pushing member is connected with the dynamic spring plate and is provided with at least one blocking part; the pushing member can push the dynamic spring plate to be close to or away from the static spring plate along the first direction, so that the dynamic contact point and the static contact point are in contact or disconnected; at least one blocking part is arranged between at least two adjacent contact point units. Compared with the traditional technology, the relay can block the arc and splashes generated by the blocking part on the pushing member and the two adjacent contact point units, avoid the arc interlacing and the splashes cross-contamination, prevent the contact resistance of the contact point from fluctuating, and improve the service life of the relay.

Description

Technical Field

[0001] This application relates to the technical field of electrical control devices, and in particular to a relay. Background Technology

[0002] A relay is an electrical control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current. In circuits, it plays roles such as automatic adjustment, safety protection, and circuit switching.

[0003] When a relay with multiple sets of contacts connected in parallel is in use, there may be cross-contamination of electric arcs and flying debris between the contacts, which can cause fluctuations in the contact resistance and affect the service life of the relay. Utility Model Content

[0004] Therefore, it is necessary to provide a relay that addresses the problem of fluctuating contact resistance between contacts due to arc crossing and cross-contamination by splashes in traditional technologies, which affects the lifespan of the relay.

[0005] The technical solution is as follows:

[0006] One embodiment provides a relay, including:

[0007] A stationary reed, wherein the stationary reed is provided with at least two stationary contacts;

[0008] A movable spring is provided with at least two movable contacts. The movable spring and the stationary spring are spaced apart along the first direction of the relay. The position of each movable contact is opposite to the position of one of the stationary contacts. The opposite movable contact and the stationary contact constitute a contact unit.

[0009] A pusher is connected to the movable spring and has at least one partition. The pusher can push the movable spring closer to or away from the stationary spring along the first direction so that the movable contact contacts or disconnects from the stationary contact. At least one partition is provided between at least two adjacent contact units.

[0010] In the aforementioned relay, when the pushing member reciprocates along the first direction, it synchronously pushes the moving spring to deform, causing the stationary contact on the stationary spring and the moving contact on the moving spring to come into contact or disconnect. During the contact disconnection process, the contact unit generates an electric arc and forms spatter. The partition on the pushing member is located between two adjacent contact units to block the electric arc and spatter generated by the contact unit. Compared with conventional technology, the aforementioned relay, by using the partition on the pushing member to block the electric arc and spatter generated by two adjacent contact units, avoids the occurrence of electric arc crossing and spatter cross-contamination, prevents fluctuations in contact resistance, and improves the service life of the relay.

[0011] In one embodiment, at least two adjacent contact units are respectively a first contact unit and a second contact unit;

[0012] Wherein, when the stationary contact is disconnected from the moving contact, the gap between the stationary contact in the first contact unit and the moving contact in the first contact unit is smaller than the gap between the stationary contact in the second contact unit and the moving contact in the second contact unit.

[0013] In one embodiment, the distance from the bottom to the top of the stationary contact in the first contact unit is set as a first height, the distance from the bottom to the top of the moving contact in the first contact unit is set as a second height, the distance from the bottom to the top of the stationary contact in the second contact unit is set as a third height, and the distance from the bottom to the top of the moving contact in the second contact unit is set as a fourth height, wherein the sum of the first height and the second height is greater than the sum of the third height and the fourth height.

[0014] In one embodiment, the direction in which the partition faces the contact unit is set as a second direction, the second direction intersecting the first direction, and the partition and the contact unit are spaced apart along the first direction.

[0015] In one embodiment, the direction in which the partition faces the contact unit is set as a second direction, and the second direction intersects with the first direction;

[0016] When the stationary contact is disconnected from the moving contact, the projection of the partition on the projection plane perpendicular to the second direction covers the gap between the stationary contact and the moving contact in the contact unit.

[0017] In one embodiment, the stationary spring is provided with a clearance groove, the position of which corresponds to the position of the partition, and the clearance groove is used to accommodate the partition.

[0018] In one embodiment, the partition extends along the depth direction of the clearance groove, and the length of the partition in the depth direction of the clearance groove is less than the depth of the clearance groove.

[0019] In one embodiment, the partition includes a partition member having a cavity. In another embodiment, the partition further includes an insulating high-temperature resistant member disposed within the cavity.

[0020] In one embodiment, the pusher includes a connecting part, a push plate, and a mounting part. One end of the connecting part is connected to the push plate, and the other end of the connecting part is connected to the mounting part. The mounting part is provided with the partition part. The mounting part and the push plate are spaced apart along the first direction to form a mounting gap. The movable spring passes through the mounting gap.

[0021] In one embodiment, the movable spring is provided with a compression spring, the compression spring is provided with a bent elastic portion, the compression spring passes through the mounting gap and abuts against the push plate, and the movable spring abuts against the mounting portion. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a relay in one embodiment of this application.

[0024] Figure 2 This is a side view of a relay in one embodiment of this application.

[0025] Figure 3 for Figure 2 A schematic diagram of the AA section.

[0026] Figure 4 This is a schematic diagram of the first contact unit and the second contact unit in one embodiment of this application.

[0027] Figure 5 This is a schematic diagram of the structure of the pusher in one embodiment of this application.

[0028] Figure 6 This is a side view of the pusher in one embodiment of this application.

[0029] Figure 7 This is a schematic diagram of the structure of the stationary reed in one embodiment of this application.

[0030] Figure 8 This is a schematic diagram of the structure of the movable spring in one embodiment of this application.

[0031] Attached image annotations:

[0032] 100. Stationary spring; 110. Stationary contact; 120. Stationary spring lead-out end; 130. Clearance groove; 200. Moving spring; 210. Moving contact; 220. Moving spring lead-out end; 230. Compression spring; 231. Elastic part; 300. Pushing member; 310. Partition; 320. Connecting part; 330. Push plate; 331. Assembly groove; 340. Mounting part; 350. Mounting gap; 360. Guide part; 410. First contact unit; 420. Second contact unit; 510. Base; 520. Drive assembly; 521. Electromagnetic element; 522. Coil lead-out end; 530. Housing. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] Please see Figures 1 to 6 One embodiment of this application provides a relay, including a stationary spring 100, a movable spring 200, and a pusher 300. The stationary spring 100 has at least two stationary contacts 110; the movable spring 200 has at least two movable contacts 210. The movable spring 200 and the stationary spring 100 are spaced apart along a first direction of the relay. The position of each movable contact 210 is opposite to the position of one of the stationary contacts 110. A movable contact 210 and a stationary contact 110 opposite each other constitute a contact unit. The pusher 300 is connected to the movable spring 200 and has at least one partition 310. The pusher 300 can push the movable spring 200 closer to or away from the stationary spring 100 along the first direction so that the movable contact 210 contacts or disconnects from the stationary contact 110. At least one partition 310 is provided between at least two adjacent contact units.

[0040] In the aforementioned relay, when the pusher 300 reciprocates along the first direction, the pusher 300 can synchronously push the moving spring 200 to deform, causing the stationary contact 110 on the stationary spring 100 and the moving contact 210 on the moving spring 200 to come into contact or disconnect. During the contact disconnection process, the contact unit generates an electric arc and forms spatter. The partition 310 on the pusher 300 is located between two adjacent contact units to block the electric arc and spatter generated by the contact unit. Compared with conventional technology, the aforementioned relay, by using the partition 310 on the pusher 300 to block the electric arc and spatter generated by two adjacent contact units, avoids the occurrence of electric arc crossing and spatter cross-contamination, prevents fluctuations in the contact resistance of the contacts, and improves the service life of the relay.

[0041] Specifically, in the above embodiment, the pusher 300 pushes the movable spring 200 closer to or further away from the stationary spring 100 along the first direction so that the movable spring 200 is in a closed state or an open state; further, when the movable spring 200 is in an open state, all movable contacts 210 are disconnected from the corresponding stationary contacts 110, and when the movable spring 200 is in a closed state, all movable contacts 210 are in contact with the corresponding stationary contacts 110.

[0042] As a supplementary explanation, in this application, the partition 310 is provided on the pusher 300, which not only blocks the arc and splashes without affecting the movement of the pusher 300, but also eliminates the need for additional components on the relay for the installation of the partition 310, simplifying the relay processing and installation process, reducing manufacturing costs, and improving the internal space utilization of the relay, which is conducive to the miniaturization design of the relay.

[0043] For illustrative purposes, the first direction of the relay in the above embodiments refers to the length direction of the relay (i.e., Figure 2 (in the B direction of the relay), the moving spring 200 and the stationary spring 100 are spaced apart along the first direction of the relay. The pusher 300 can reciprocate along the first direction of the relay and push the stationary spring 100 to achieve contact or disconnection between the moving contact 210 and the stationary contact 110.

[0044] Further, please refer to Figure 1 and Figure 5 The pusher 300 has a plate-like structure, and the baffle 310 is a protruding structure provided on one side of the pusher 300 to isolate the electric arc and splash generated by the contact unit.

[0045] Please see Figures 1 to 2In one embodiment, the relay further includes a base 510 and a drive assembly 520. The stationary spring 100 and the moving spring 200 are spaced apart on the base 510 along a first direction. The drive assembly 520 is disposed on the side of the moving spring 200 away from the stationary spring 100. The pusher 300 is drivenly connected to the drive assembly 520. Under the driving action of the drive assembly 520, the pusher 300 can reciprocate along the first direction, thereby pushing the moving spring 200.

[0046] Furthermore, the drive assembly 520 includes an armature (not shown in the figure) and an electromagnetic element 521. One end of the armature is connected to the pusher 300. The electromagnetic element 521 can drive the armature to rotate, so that the armature drives the pusher 300 to reciprocate along the first direction. Both the armature and the electromagnetic element 521 can adopt existing common structures, which will not be described in detail here.

[0047] Furthermore, please refer to Figure 1 The relay also has a housing 530, which is an integral structure with the base 510. The armature arm is located inside the housing 530, so that the housing 530 can protect the armature arm.

[0048] Please see Figures 1 to 2 In one embodiment, one end of the pusher 300 is connected to the armature arm, one end of the stationary spring 100 and one end of the movable spring 200 are spaced apart on the base 510 along a first direction, and the other end of the movable spring 200 is connected to the end of the pusher 300 away from the armature arm. When the armature arm drives the pusher 300 to move, the movable spring 200 will deform to achieve contact or disconnection between the movable contact 210 and the stationary contact 110.

[0049] Furthermore, one end of the stationary reed 100 serves as the stationary reed lead-out end 120 and passes through the base 510, while one end of the movable reed 200 serves as the movable reed lead-out end 220 and passes through the base 510. External current can be input through the stationary reed lead-out end 120 and output from the movable reed lead-out end 220, thereby forming a circuit.

[0050] In addition, the electromagnetic element 521 is also provided with a coil lead-out end 522, which passes through the base 510 and is used for external circuit connection to realize the energization of the coil of the electromagnetic element 521.

[0051] Please see Figures 3 to 4 In one embodiment, at least two adjacent contact units are a first contact unit 410 and a second contact unit 420, respectively.

[0052] When the stationary contact 110 and the moving contact 210 are disconnected, the gap between the stationary contact 110 and the moving contact 210 in the first contact unit 410 is smaller than the gap between the stationary contact 110 and the moving contact 210 in the second contact unit 420.

[0053] When the stationary contact 110 and the moving contact 210 are open, the gap between the stationary contact 110 and the moving contact 210 in the first contact unit 410 is smaller than the gap between the stationary contact 110 and the moving contact 210 in the second contact unit 420. In other words, the contact gap of the first contact unit 410 is smaller than the contact gap of the second contact unit 420. Therefore, during the process of the stationary contact 110 and the moving contact 210 switching from a closed state to an open state, the second contact unit 420 with the larger contact gap will open first, before the first contact unit 410 with the smaller contact gap. Furthermore, when the second contact unit 420 just opens, the first contact unit 410 has not yet completely opened. Therefore, the stationary contact 110 and moving contact 210 in the second contact unit 420 serve as current carriers, while the stationary contact 110 and moving contact 210 in the first contact unit 410 serve as arc ignition units. Since the second contact unit 420, with its larger contact gap, does not generate an arc when disconnected, it is only necessary to control the contact parameters of the stationary contact 110 and moving contact 210 in the first contact unit 410, without needing to consider the second contact unit 420. This makes it easier to control the contact parameters of the relay, reduces the processing difficulty, and improves the production efficiency of the relay.

[0054] Furthermore, the contact gap between the first contact unit 410 and the second contact unit 420 can be adjusted by adjusting the height of the stationary contact 110 relative to the stationary spring 100 or by adjusting the height of the moving contact 210 relative to the moving spring 200. Alternatively, the contact gap between the first contact unit 410 and the second contact unit 420 can be adjusted by adjusting the posture of the moving spring 200 and the stationary spring 100. For example, at least one of the moving spring 200 and the stationary spring 100 can be set to an inclined posture, so that the gap between the stationary contact 110 and the moving contact 210 in the first contact unit 410 is smaller than the gap between the stationary contact 110 and the moving contact 210 in the second contact unit 420. This will not be elaborated further here.

[0055] Please see Figure 4 In one embodiment, the first contact unit 410 and the second contact unit 420 are two contact units arranged adjacent to each other, and a partition 310 is provided between the first contact unit 410 and the second contact unit 420.

[0056] Furthermore, the relay in this embodiment is a dual-contact parallel mode. Compared with a single-contact relay, a dual-contact parallel relay can reduce the temperature rise under the premise of the same current-carrying cross-sectional area, thereby allowing more current to pass through. At the same time, it is not necessary to reduce the temperature rise by increasing the cross-sectional area of ​​the moving spring 200, thereby reducing copper loss.

[0057] Furthermore, in this embodiment, in addition to the dual-contact parallel mode, the relay can also adopt a multi-contact parallel mode according to actual needs. Accordingly, in the multi-contact parallel mode, at least two baffles are provided to block the arc and splashes.

[0058] Please see Figure 4 In one embodiment, the distance from the bottom to the top of the stationary contact 110 in the first contact unit 410 is set as a first height, the distance from the bottom to the top of the moving contact 210 in the first contact unit 410 is set as a second height, the distance from the bottom to the top of the stationary contact 110 in the second contact unit 420 is set as a third height, and the distance from the bottom to the top of the moving contact 210 in the second contact unit 420 is set as a fourth height. The sum of the first height and the second height is greater than the sum of the third height and the fourth height.

[0059] Since the sum of the first and second heights is greater than the sum of the third and fourth heights, when the stationary contact 110 and the moving contact 210 are disconnected, the gap between the stationary contact 110 and the moving contact 210 in the first contact unit 410 is smaller than the gap between the stationary contact 110 and the moving contact 210 in the second contact unit 420. Thus, during the disconnection of the moving contact 210 and the stationary contact 110, the stationary contact 110 and the moving contact 210 of the first contact unit 410 act as arc ignition points, while the stationary contact 110 and the moving contact 210 of the second contact unit 420 act as current carriers. Therefore, only the contact parameters of the stationary contact 110 and the moving contact 210 in the first contact unit 410 need to be controlled, without considering the second contact unit 420, reducing the processing difficulty of the relay and improving production efficiency.

[0060] For explanation, please refer to Figure 4 Taking the moving contact 210 in the second contact unit 420 as an example, the side of the moving contact 210 connected to the moving spring 200 is the bottom, and the side of the moving contact 210 away from the moving spring 220 is the top. Specifically... Figure 4 When the second contact unit 420 is in the middle, the bottom of the moving contact 210 is Figure 4 At point F1, the top of the moving contact 210 of the second contact unit 420 is... Figure 4 At point F2 in the middle.

[0061] Further, please refer to Figure 4The first height is H1, the second height is H2, the third height is H3, and the fourth height is H4, where H1+H2>H3+H4, so that the gap between the stationary contact 110 and the moving contact 210 in the first contact unit 410 is smaller than the gap between the stationary contact 110 and the moving contact 210 in the second contact unit 420.

[0062] Please see Figures 3 to 4 In one embodiment, the direction in which the partition 310 faces into the contact unit is designated as the second direction (i.e., Figure 3 The second direction intersects the first direction (in the C direction), and the partition 310 and the contact unit are spaced apart along the second direction.

[0063] The barrier portion 310 is spaced apart from the contact unit to prevent the electric arc generated by the contact unit from burning and damaging the barrier portion 310, thereby improving the service life of the relay.

[0064] Furthermore, the partition 310 will reciprocate along the first direction with the pusher 300. During this process, the partition 310 must be spaced from both the stationary contact 110 and the moving contact 210 in the contact unit to prevent the electric arc generated by the contact unit from burning the partition 310.

[0065] Please see Figures 3 to 4 In one embodiment, the direction in which the partition 310 faces the contact unit is a second direction (i.e., Figure 2 (in the C direction), the second direction intersects with the first direction;

[0066] When the stationary contact 110 is disconnected from the moving contact 210, the projection of the barrier portion 310 on the projection plane perpendicular to the second direction covers the gap between the stationary contact 110 and the moving contact 210 in the contact unit.

[0067] This configuration ensures that the partition 310 can completely block the gap between the stationary contact 110 and the moving contact 210, thus ensuring the partition 310's effectiveness in blocking the arc and spatter generated by the contact unit.

[0068] Further, please refer to Figure 4 The projection of the barrier portion 310 onto the projection plane perpendicular to the second direction covers the stationary contact 110 and the moving contact 210 in the contact unit, thereby further ensuring the barrier effect against the electric arc and spatter formed in the contact unit.

[0069] Specifically, the second direction is perpendicular to the first direction.

[0070] Please see Figure 1 and Figure 7In one embodiment, the stationary spring 100 is provided with a relief groove 130, the position of which corresponds to the position of the partition 310, and the relief groove 130 is used to accommodate the partition 310.

[0071] The clearance groove 130 on the stationary spring 100 can avoid the partition 310, preventing the partition 310 from contacting the stationary spring 100 and interfering with the operation of the pusher 300 when the pusher 300 reciprocates along the first direction. In addition, by providing the clearance groove 130, the volume of the partition 310 can be increased during production to avoid contact between the partition 310 and the stationary spring 100, thereby further ensuring the blocking effect of the partition 310 on the arc and spatter formed by the contact unit.

[0072] In addition, by creating a clearance groove 130 on the stationary reed 100, the manufacturing materials for the stationary reed 100 can be saved, reducing copper consumption and lightening the overall weight of the relay.

[0073] Further, please refer to Figure 1 The direction in which the moving spring 200 faces the pusher 300 is set as the third direction (i.e., Figure 1 The groove of the clearance groove 130 is opened in the third direction (in the D direction) to avoid and accommodate the partition 310 on the pusher 300.

[0074] Please see Figure 1 In one embodiment, the partition portion 310 extends along the depth direction of the clearance groove 130, and the length of the partition portion 310 in the depth direction of the clearance groove 130 is less than the depth of the clearance groove 130.

[0075] For explanation, the clearance groove 130 has a groove on the side facing the pusher. The depth direction of the clearance groove 130 refers to the direction of the groove opening of the clearance groove 130 towards the bottom wall of the clearance groove 130, which will not be elaborated here.

[0076] With this configuration, when the pusher 300 moves the partition 310, it can prevent the partition 310 from colliding with the clearance groove 130 and interfering with the operation of the relay.

[0077] In one embodiment, the partition 310 includes a partition member having a cavity therein.

[0078] Hollowing out the partition component to form a cavity can reduce the overall weight of the partition 310, thereby reducing the force required for the armature arm to move the pusher 300.

[0079] In one embodiment, the partition further includes an insulating high-temperature resistant component disposed within the cavity.

[0080] The insulating high-temperature resistant components can withstand and interrupt the electric arc, ensuring the blocking effect on the electric arc formed by the contact unit.

[0081] Furthermore, the insulating high-temperature resistant components are made of ceramic. The excellent high-temperature resistance and insulation properties of ceramic not only allow it to withstand the high temperature of the electric arc, but also to interrupt the arc, ensuring the blocking effect on the electric arc formed by the contact unit.

[0082] To explain, when the relay load is large, it is necessary to install an insulating high-temperature resistant component in the cavity of the partition part 310. When the relay load is small, it is not necessary to install an insulating high-temperature resistant component in the cavity of the partition part 310. The choice can be made flexibly according to the operating conditions of the relay, which will not be elaborated here.

[0083] Furthermore, the insulating and high-temperature resistant components can be installed in the cavity of the partition 310 by means of snap-fit ​​fixing, glue fixing or integral injection molding to ensure installation strength.

[0084] Please see Figure 5 In one embodiment, the pusher 300 includes a connecting portion 320, a push plate 330, and a mounting portion 340. One end of the connecting portion 320 is connected to the push plate 330, and the other end of the connecting portion 320 is connected to the mounting portion 340. The mounting portion 340 is provided with a partition portion 310. The mounting portion 340 and the push plate 330 are spaced apart along a first direction to form a mounting gap 350. The movable spring 200 passes through the mounting gap 350.

[0085] The mounting part 340 is connected to the push plate 330 via the connecting part 320. The mounting part 340 and the push plate 330 are spaced apart along the first direction to form a mounting gap 350. The movable spring 200 passes through the mounting gap 350. Thus, when the push member 300 moves back and forth along the first direction, it can drive the movable spring 200 to deform, so that the movable contact 210 on the movable spring 200 contacts or disconnects from the stationary contact 110 on the stationary spring 100.

[0086] Further, please refer to Figure 5 There are two connecting parts 320, which are respectively located at opposite ends of the mounting part 340. The mounting part 340 is connected to the push plate 330 through the two connecting parts 320 to improve the overall strength of the push member 300.

[0087] Please see Figure 5 In one embodiment, the end of the push plate 330 away from the connecting part 320 is provided with an assembly groove 331, which is used to install the armature arm, and will not be described in detail here.

[0088] Please see Figure 2 and Figure 8In one embodiment, the movable spring 200 is provided with a compression spring 230, which passes through the mounting gap 350 and abuts against the push plate 330, while the movable spring 200 abuts against the mounting part 340.

[0089] The compression spring 230 on the moving spring 200 passes through the mounting gap 350 and abuts against the push plate 330, while the moving spring 200 abuts against the mounting part 340. Thus, when the push member 300 moves toward the stationary spring 100, the push plate 330 transmits the thrust to the compression spring 230, which then drives the moving spring 200 to move. The compression spring 230 has a certain elasticity, which can prevent the push member 300 from applying too much thrust to the moving spring 200 and causing damage to the moving spring 200, thereby improving the service life of the relay.

[0090] Further, please refer to Figure 2 The compression spring 230 is provided with an elastic part 231. The elastic part 231 is bent to reduce the elastic coefficient of the elastic part 231, making the elastic part 231 easier to deform. When the load current of the relay generates a short circuit current, it can prevent the compression spring 230 from tilting up, making the relay connection state more stable.

[0091] Please see Figure 2 , Figure 5 and Figure 6 In one embodiment, the pusher 300 further includes a guide portion 360, which is disposed on the pusher plate 330 and located at the mounting gap 350. The guide portion 360 has a guide slope for guiding and cooperating with the compression spring 230 so that the compression spring 230 passes through the mounting gap.

[0092] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A relay, characterized in that, include: A stationary reed, wherein the stationary reed is provided with at least two stationary contacts; A movable spring is provided with at least two movable contacts. The movable spring and the stationary spring are spaced apart along the first direction of the relay. The position of each movable contact is opposite to the position of one of the stationary contacts. The opposite movable contact and the stationary contact constitute a contact unit. A pusher is connected to the movable spring and has at least one partition. The pusher can push the movable spring closer to or away from the stationary spring along the first direction so that the movable contact contacts or disconnects from the stationary contact. At least one partition is provided between at least two adjacent contact units.

2. The relay according to claim 1, characterized in that, At least two adjacent contact units are provided, namely a first contact unit and a second contact unit; Wherein, when the stationary contact is disconnected from the moving contact, the gap between the stationary contact in the first contact unit and the moving contact in the first contact unit is smaller than the gap between the stationary contact in the second contact unit and the moving contact in the second contact unit.

3. The relay according to claim 2, characterized in that, The distance from the bottom to the top of the stationary contact in the first contact unit is set as a first height, the distance from the bottom to the top of the moving contact in the first contact unit is set as a second height, the distance from the bottom to the top of the stationary contact in the second contact unit is set as a third height, and the distance from the bottom to the top of the moving contact in the second contact unit is set as a fourth height. The sum of the first height and the second height is greater than the sum of the third height and the fourth height.

4. The relay according to claim 1, characterized in that, The direction in which the partition faces the contact unit is designated as a second direction, which intersects with the first direction. The partition and the contact unit are spaced apart along the second direction.

5. The relay according to claim 1, characterized in that, The direction in which the partition faces the contact unit is designated as the second direction, and the second direction intersects with the first direction; When the stationary contact is disconnected from the moving contact, the projection of the partition on the projection plane perpendicular to the second direction covers the gap between the stationary contact and the moving contact in the contact unit.

6. The relay according to claim 1, characterized in that, The stationary spring sheet has a clearance groove, the position of which corresponds to the position of the partition, and the clearance groove is used to accommodate the partition.

7. The relay according to claim 6, characterized in that, The partition extends along the depth direction of the clearance groove, and the length of the partition in the depth direction of the clearance groove is less than the depth of the clearance groove.

8. The relay according to claim 1, characterized in that, The partition includes a partition component, which has a cavity inside.

9. The relay according to claim 8, characterized in that, The partition also includes an insulating and high-temperature resistant component, which is disposed within the cavity.

10. The relay according to claim 1, characterized in that, The pushing component includes a connecting part, a pushing plate, and a mounting part. One end of the connecting part is connected to the pushing plate, and the other end of the connecting part is connected to the mounting part. The mounting part is provided with the partition part. The mounting part and the pushing plate are spaced apart along the first direction to form a mounting gap. The movable spring passes through the mounting gap.

11. The relay according to claim 10, characterized in that, The movable spring is provided with a compression spring, the compression spring is provided with a bent elastic part, the compression spring passes through the mounting gap and abuts against the push plate, and the movable spring abuts against the mounting part.

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